A world of a big profits – in this type of betting the profits are more than usual 3-4%. In this bet you will not always win, only under certain results. But really worth the waiting. You can risk and a small amount (10% of stake), but the middles are always rewarding.
As arbitrage betting, the types of middles are countless and depend of knowledge and preferences of the bettors. Most popular middles are those of sports with more points – basketball, handball, rugby and etc. The reason is that in those sports more often can have a middles. Of course there is a middles and in the football.
The easier understanding of middles is with Asian Handicap example:
$515 for Team1 (-3) 1.90 @ Bookie1
$435 for Team2 (+4) 2.25 @ Bookie2
If Team1 wins with less than three goals, you win the (+4) bet at Bookie2.
Total Profit = $28.75
If Team1 wins with more than four goals, you win the (-3) bet at Bookie1.
Total Profit = $28.50
If Team1 wins with exactly four goals, you win the (-3) bet at Bookie1. Your (+4) bet for Team2 will be refunded at Bookie2.
Total Profit = $463.50
If Team1 wins with exactly three goals, your (-3) bet for Team1 will be refunded at Bookie1 and you will win your (+4) bet for Team2 at Bookie2.
Total Profit = $543.75
There are different variation of arbitrage: Betting arbitrage, miraclebets, surebets, sports arbitraging and etc.